Coal-dump.



c. B. CHEER.

COAL DUMP.

APPUCATION FILED NOV. 22. 1915- Pa-tented Apr. 3,1917.

2 SHEETHHEET L WMTNESS woamev c. B. CHEEK.

COAL DUMP.

APPLICATION FILED NOV- 22,;l9l5- Pamnted Apr. 3,191?

2 SHEETS-SHEET 2.

ATTORNEY stood that the supporting rod 2 is positioned to one side of the longitudinal center OfSalCl cant. n. or nirrnnrnrsn, rows,

COAL-DUMR Specification of Letters Patent.

Patented Apr pplioation filed November 22, 1915. Serial No. 62,836.

To all whom may concern."

Be it known that l, CARL B. CHEEK, a citizen of the United States, residing at Enterprise, in the county of Polk and State of lows, have invented certain new and useful improvements in Goal-Dumps; of which the following is a specification.

This invention has relatlon to certain new i and useful improvements in coal dumps, and

has for its-primary object the provision.- of

a device. of this character in which will be included an improved and novel mechanism for loclnng a car upon a rotary platform.

The invention has for another object, the provision of an improved form of platform, and means for'locking the same in normal position.

The invention has for another object, the vprmzlsion of a coal dump of the aboveform in normal position and a carupon the Fig 2 is a longitudinal vertical section substantially on the plane of line2-2 of Fig. 1;

Fig. 3 is a transverse section on the plane of line 3- of Fig. 2 with a car in position upon either side of the platform.

Referring more particularly of the drawings in which similar reference characters. designate correspondmg parts throughout the several views, 1 designatesthe revolving platform which is pivoted upon the longitudinal-supporting rod 2 having its opposite ends mounted in the stationary platform 3 so-that the revolvingplatform 1 may'readily revolve in the opening d of the stationary platform 3 when released, it being vunderrevolving platform 1. p l

The revolving platform 1 is prevented from rotating in one direction, by means of the spring catch 5 beneath the same and projecting past the longitudinal edgecf said revolving platform 1 and at one side of said platform 1 The platform 1 is normally prevented from rotating in the reverse direction by means of thefree end of the shaped'crank stop 6 pro ecting over the edge of the same abovethe sprlngcatch 5, said .h-slmped stop 6 being pivoted t sshown at 7 upon a suitable support carried by the sta tionary platform 3 to one side of the revolv ing platform I. The L-shaped stop 6 is resiliently retained in normal. position by mam of a suitable spring 8 connected with thesame and is adapted to be operated to swing the free end of said l -shaped stop 6 to inoperative position and thereby release the revolving'platforni. 1 by a suitable operating rod 9 vconnected with an operating le ver 10 a suitabledistance from the revolving platform 1 and pivoted upon a support 11, as clearly shown in the drawings. 1

The revolving platform 1 has secured both faces thereof track rails 12 which. on tend from end to end of the platform and when the platform is in horizontal position, the rails on the upper surfacelthereof will be in alinement with trackrails 13 lead ing to the revolving platform and rails 1 leading away therefrom. Therai-ls 12 on the two sides of the revolving vplatfonm offset from'one another, that is to say, the

track section comprising the rails 12 on one face is placed to one side of the axis of revolution whlle the track section of the other face of the platform is secured on the other side of said aXlS in the opposite direction so that when a loaded car 15-has passed upon the track rails 12, the center of Weight there- I of will be at one side of the center of revolution, while the center ofweight of the empty year on the under side of the platform will be on the other side. of the axis of the platform. The loaded car upon the platformis heavier, therefore'the tendency ofthe platform is to revolve on its axis but isl restrained from doing so by the stop 6 which upon being released permits the platform to turn and carry the loaded car, downwardly and raise the empty car. a 1

To either side ofthe track section leading to the revolving platform 1 andcomposed of therails 13 are'the car wheel engaging mem bers 16 which 'are'pivoted .to the stationary platform 3 and connected adjacent their free ends by the connecting links 17 pivoted to the turn bar 18 which in turn pivoted upon a suitable support 19 intermediate the rails 13. The car wheel engaging members are normally parallel with the rails 13 lid and in a plane slightly above the same and a bar-2O is connected with one of said car wheel engaging members 16 and with an operating lever 21 mounted upon a support 22 to swing the car wheel engaging members 16 over the rails 13 for the purpose of preventing a car from riding on to the rails 12.

Pivoted in slots in the endv of the revolving platform 1 nearest the track rails 13 are two latch levers 24 which in the horizontal position of thep'latform extend vertically, the longer end of one lever projecting above the platform midway the rails 12 on the same side, while the longer arm of the other lever projects below the platform, and is I also midway the rails 12 on the under side between the front and rear wheels of thecars sufficiently far to prevent the cars from' of the platform. On each side of the plat form is a rock shaft 26 jcurn-aled in bearings 27 and formed with a crank 26/between the rails 12. Each of said cranks is connccted by a link 25 with the short end of the latch lever 2-41: whose longer end projects beyond the opposite face of the platform. Each rock shaft 26 has an arm 28 on each end thereof that lies parallel with the platform and close to the face thereof and extending parallel from the rock shaft for a suitable distance in line with the rails 12 on the opposite face of the platform. These arms 28 terminate in fingers 29 extending at rightangles to the arms 28 and pass through the platform and through openings in the rails 12 on the sides of the platform opposite the arms28. These fingers project beyond the tread surface of the rails and running endwise off the platform until they .have been depressed. For the purpose. of

automatically depressing these fingers, the latch levers 24 are arranged to extend sulficiently far-beyond the faces of the revolving platform 1 to be engaged by a loaded car about to pass upon the platform the axle of which loaded car striking the curved upper end 23 of the lever 24 projecting from the upper side of the,platform swings said lever and through the link 25 rocks the shaft 26 on the under side of the platform, thereby causing aylownward movement of the arms 28 connected to said rock shaft and the lowering of the fingers 29 that were projected upwardly through the rails 12 on the top of the platform. The empty car on the platform 1 is now pushed from the platform by the advancing loaded car onto the tracks 14 where it is removed by a suitable engine and carried away or switchedbackwardly onto the siding 32 carried by the platform 3. The loaded car taking place of the empty .car will have passed beyond the latch lever 24 and the parts connected thereto will be restored to normal position by a spring 30, which operation wil again raise the fingers 29,-above the track rails between the wheels of the car and prevent the san from pass- 7 ing off the platform. When the loaded car passes upon the revolving platform 1, the wheels of each side pass under a guard plate 31 having a 'flanged top that lies above the car wheels of each side and extends downwardly to the platform to which it is bolted. These guard plates serve to hold the cars in position as the platform revolves and maintain said cars suspended from the under side of the platform as clearly shown in Fig. 3.

In use the revolving platform is held in horizontal position by the lower resilient stop 5 and the upper swinging stop 6. In this position a loaded car may be Pushed from track 13 on the stationary platform 3 to the track 12 on the revolving platform 1 and after the car has been secured in place in the manner heretofore described, an operator through the lever 10 swings the stop..

6 clear of the revoluble platform and the weighted car being supported on one side of the axis of revolution of the supporting rod 2 will cause the platform to turn to the left and carry the loaded car downwardly into the pit 33, being held in place upon the track rails by the guard plates 31. The side of the platform that is raised by this semirotation depresses the spring stop 5 and passes above the same but is arrested by the swinging stop 6 which has been permitted to return to position immediately after the platform has started to turn. Another loaded car may now be moved onto the tracks 12 that previously were on the under side of the platform and when fastened in place, the pivoted latch is'again moved to rele se the platform and as the loaded car is eavier than the empty car on the under side of the platform and is on one side of the axis of revolution, while the empty car is on the opposite side, the weight of the loaded car immediately'causes the platform to rotate and bring the empty car again to the top. A

loaded car'now advancing upon the platform will operate the latch lever 24 to lower the fingers 29 and push the empty car from the platform, itself taking the place of the empty car.

connections between each of said levers and s the stop devices of the track section of the same side, and means for maintaining a car,

. upon each track-sectio'n during the rotation of the platform.

A car dumping mechanism comprising a stationary platform, a revolving platform within said stationary platform and rotatable in one direction only on a horizontal axis, a car track section on each side of the platform parallel with the axis of rotation, a rock shaft on each side of the platform extending transversely of. the car track sections, a pair of trip levers extending through the platform at one end, the longer arms of said levers projecting in opposite directions, links connecting the shorter arms of the levers with, the respective rock shafts, and fingers carried by arms on said rock shafts projecting through the platform and through the rail to form stops for cars supported on said rails, and guard plates overlying the rails of said tracks in position to engage the wheels of the cars thereon for securing them to the track and maintaining the cars in position on the tracks during rotation of the platform.

In testimony whereof I afiix my signature in presence of two witnesses.

CARL B; CHEEK. Witnesses:

T. JOHN H1111, WAYNE ERvIN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington; D. 0. 

